Are socially acquired behaviours irreversible?

Norway rat subjects were exposed for either 3 or 10 days to conspecific demonstrators eating a cinnamon-flavoured, protein-deficient diet. While in contact with their demonstrators, and for several days thereafter, subjects were offered a choice between the cinnamon-flavoured, protein-deficient diet that their demonstrators were eating and a less palatable, nutmeg-flavoured, protein-rich diet. While subjects were in contact with their …